E. Rashid, Z. Hussain, M. A. Nawaz, S. Rashid, Prof. Naqib Ullah, Khan
{"title":"EVALUATION OF PEA GENOTYPES FOR SALT STRESS TOLERANCE","authors":"E. Rashid, Z. Hussain, M. A. Nawaz, S. Rashid, Prof. Naqib Ullah, Khan","doi":"10.54910/sabrao2023.55.4.35","DOIUrl":null,"url":null,"abstract":"Pea (Pisum sativum L.), a highly nutritious vegetable, is extremely sensitive to salt stress conditions. A pot study evaluated four pea genotypes (Samrina Zard, Climax, Ambassador, and Green Arrow) by exposing them to control, 2.5, 5.0, and 7.0 dS m-1 by applying NaCl, Na2SO4, MgSO4, and CaCl2 salts. The pots under a completely randomized design (CRD) layout had four replications. Immense genetic variations occurred among the pea genotypes under salt stress. Samrina Zard showed better physiological (transpiration and photosynthesis rates, stomatal conductance, water use efficiency, and chlorophyll) and morphological traits (shoot/root length, shoot/root dry weight, number of leaves per plant, and leaf area). Genotype Samrina Zard significantly maintained the highest percentage of shoot length (14.54%), root length (28.28%), shoot dry weight (19.58%), root dry weight (36.36%), number of leaves (27.24%), and leaf area (21.59%) at a higher level of salinity 7 dS m-1 compared with the control and all other treatments. In contrast, the Ambassador genotype was categorically salt-sensitive based on the least percentage increase in shoot length (22.42%), dry weight of shoot (67.57%), dry weight of root (59.59%), number of leaves (47.69%) and leaf area (23.72%). However, salinity reduced the physiological attributes in both genotypes. Regardless of salt treatments, Samrina Zard performed better than Ambassador regarding photosynthesis (48.07%), transpiration rate (18.76%), stomatal conductance (45.42%), water use efficiency (55.88%), and chlorophyll contents (29.44%). According to study findings, Samrina Zard performed best against salinity stress.","PeriodicalId":21328,"journal":{"name":"Sabrao Journal of Breeding and Genetics","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sabrao Journal of Breeding and Genetics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.54910/sabrao2023.55.4.35","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Pea (Pisum sativum L.), a highly nutritious vegetable, is extremely sensitive to salt stress conditions. A pot study evaluated four pea genotypes (Samrina Zard, Climax, Ambassador, and Green Arrow) by exposing them to control, 2.5, 5.0, and 7.0 dS m-1 by applying NaCl, Na2SO4, MgSO4, and CaCl2 salts. The pots under a completely randomized design (CRD) layout had four replications. Immense genetic variations occurred among the pea genotypes under salt stress. Samrina Zard showed better physiological (transpiration and photosynthesis rates, stomatal conductance, water use efficiency, and chlorophyll) and morphological traits (shoot/root length, shoot/root dry weight, number of leaves per plant, and leaf area). Genotype Samrina Zard significantly maintained the highest percentage of shoot length (14.54%), root length (28.28%), shoot dry weight (19.58%), root dry weight (36.36%), number of leaves (27.24%), and leaf area (21.59%) at a higher level of salinity 7 dS m-1 compared with the control and all other treatments. In contrast, the Ambassador genotype was categorically salt-sensitive based on the least percentage increase in shoot length (22.42%), dry weight of shoot (67.57%), dry weight of root (59.59%), number of leaves (47.69%) and leaf area (23.72%). However, salinity reduced the physiological attributes in both genotypes. Regardless of salt treatments, Samrina Zard performed better than Ambassador regarding photosynthesis (48.07%), transpiration rate (18.76%), stomatal conductance (45.42%), water use efficiency (55.88%), and chlorophyll contents (29.44%). According to study findings, Samrina Zard performed best against salinity stress.
期刊介绍:
The SABRAO Journal of Breeding and Genetics is an international journal of plant breeding and genetics research and was first published in 1969. It is the official publication of the Society for the Advancement of Breeding Research in Asia and Oceania (SABRAO).
Its objectives are to: promote the international exchange of research information on plant breeding and genetics, by describing new research findings, or ideas of a basic or practical nature; and be a medium for the exchange of ideas and news regarding members of the Society.
The Journal gives priority to articles that are of direct relevance to plant breeders and with emphasis on the Asian region. Invited for publication are research articles, short communications, methods, reviews, commentaries, and opinion articles. Scientific contributions are refereed and edited to international standards.
The journal publishes articles for SABRAO members mainly. The Journal preferred strongly that at least one author should be a current member of the Society. Non-members may also publish in the journal.